21238472

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{85639}}^1$

素因数の和:85676

約数の個数: 16

約数和(自身を含む): 41107200

約数和(自身を除く): 19868728

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 85639, 171278, 342556, 685112, 2654809, 5309618, 10619236, 21238472]

約数ペア:

[(1, 21238472), (2, 10619236), (4, 5309618), (8, 2654809), (31, 685112), (62, 342556), (124, 171278), (248, 85639)]